pH control is critical in water treatment processes. The pH level affects coagulation efficiency, disinfection effectiveness, corrosion control, and the solubility of various contaminants. Maintaining optimal pH is essential for treatment plant performance.

pH Adjustment Chemicals

Common pH increasers include caustic soda (NaOH), soda ash (sodium carbonate), and lime. Common pH decreasers include sulfuric acid, hydrochloric acid, and carbon dioxide. The choice depends on the application, cost, and handling considerations.

Optimal pH Ranges

Drinking water treatment typically targets pH 6.5-8.5. Wastewater treatment varies by process but often requires pH 6-9. Industrial processes have specific requirements that must be carefully maintained.